/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.runtime.rpc.akka;

import org.apache.flink.api.common.time.Time;
import org.apache.flink.configuration.AkkaOptions;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.runtime.akka.AkkaUtils;

import javax.annotation.Nonnull;

import static org.apache.flink.util.Preconditions.checkArgument;

/** Configuration for the {@link AkkaRpcService}. */
public class AkkaRpcServiceConfiguration {

    @Nonnull private final Configuration configuration;

    @Nonnull private final Time timeout;

    private final long maximumFramesize;

    private final boolean captureAskCallStack;

    public AkkaRpcServiceConfiguration(
            @Nonnull Configuration configuration,
            @Nonnull Time timeout,
            long maximumFramesize,
            boolean captureAskCallStack) {

        checkArgument(maximumFramesize > 0L, "Maximum framesize must be positive.");
        this.configuration = configuration;
        this.timeout = timeout;
        this.maximumFramesize = maximumFramesize;
        this.captureAskCallStack = captureAskCallStack;
    }

    @Nonnull
    public Configuration getConfiguration() {
        return configuration;
    }

    @Nonnull
    public Time getTimeout() {
        return timeout;
    }

    public long getMaximumFramesize() {
        return maximumFramesize;
    }

    public boolean captureAskCallStack() {
        return captureAskCallStack;
    }

    public static AkkaRpcServiceConfiguration fromConfiguration(Configuration configuration) {
        final Time timeout = AkkaUtils.getTimeoutAsTime(configuration);

        final long maximumFramesize = AkkaRpcServiceUtils.extractMaximumFramesize(configuration);

        final boolean captureAskCallStacks = configuration.get(AkkaOptions.CAPTURE_ASK_CALLSTACK);

        return new AkkaRpcServiceConfiguration(
                configuration, timeout, maximumFramesize, captureAskCallStacks);
    }

    public static AkkaRpcServiceConfiguration defaultConfiguration() {
        return fromConfiguration(new Configuration());
    }
}
